SDCC is a free open source, retargettable, optimizing ANSI C
compiler suite that supports a growing list of processors including the
Intel 8051, Maxim 80DS390, Zilog Z80, Z180, Rabbit 2000, gbz80,
Motorola 68HC08, S08 and STMicroelectronics STM8 targets. There also is incomplete support for the Microchip PIC16 and PIC18.

Speed Dreams is a Motorsport Simulator featuring high-quality 3D graphics and an accurate physics engine, all targeting maximum realism. Initially forked from TORCS, it has now reached a clearly higher realism level in visual and physics simulation, thanks to its active development team and growing community. It mainly aims to implement exciting new features, cars, tracks and AI opponents to make a more enjoyable game for the player, while constantly pushing forward visual and physics realism. It is also intended for any research, study or teaching activity, around physics and AI, thanks to its GPL V2+ license, and the clear and modular architecture of its C/C++ code base.

RNNLIB is a recurrent neural network library for sequence learning problems. Applicable to most types of spatiotemporal data, it has proven particularly effective for speech and handwriting recognition.
full installation and usage instructions given at
http://sourceforge.net/p/rnnl/wiki/Home/

Hyenae is a highly flexible platform independent network packet generator. It allows you to reproduce several MITM, DoS and DDoS attack scenarios, comes with a clusterable remote daemon and an interactive attack assistant.

mpop is a small and fast POP3 client. Features include mail filtering, delivery to mbox files, maildir folders or a mail delivery agent, a very fast POP3 implementation, many authentication methods, good TLS/SSL support, IPv6 support, and more.

Hans makes it possible to tunnel IPv4 through ICMP echo packets, so you could call it a ping tunnel. This can be useful when you find yourself in the situation that your Internet access is firewalled, but pings are allowed.

TorrentTrader is a feature packed and highly customisable PHP/MySQL Based BitTorrent tracker. Featuring intergrated forums, and plenty of administration options. Please visit www.torrenttrader.org for the support forums.